Download MendeleyInsights Into the Evolution of a Complex Virus from the Crystal Structure of Vaccinia Virus D13.
Bahar, M.W., Graham, S.C., Stuart, D.I., Grimes, J.M.(2011) Structure 19: 1011
- PubMed: 21742267
- DOI: https://doi.org/10.1016/j.str.2011.03.023
- Primary Citation of Related Structures:
2YGB, 2YGC - PubMed Abstract:
The morphogenesis of poxviruses such as vaccinia virus (VACV) sees the virion shape mature from spherical to brick-shaped. Trimeric capsomers of the VACV D13 protein form a transitory, stabilizing lattice on the surface of the initial spherical immature virus particle. The crystal structure of D13 reveals that this major scaffolding protein comprises a double β barrel "jelly-roll" subunit arranged as pseudo-hexagonal trimers. These structural features are characteristic of the major capsid proteins of a lineage of large icosahedral double-stranded DNA viruses including human adenovirus and the bacteriophages PRD1 and PM2. Structure-based phylogenetic analysis confirms that VACV belongs to this lineage, suggesting that (analogously to higher organism embryogenesis) early poxvirus morphogenesis reflects their evolution from a lineage of viruses sharing a common icosahedral ancestor.
Organizational Affiliation:
The Division of Structural Biology and the Oxford Protein Production Facility, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, OX3 7BN, UK.
